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abc to ignore __dummy_o__ and __const[01]__ when re-integrating

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This commit is contained in:
Eddie Hung 2019-04-12 18:16:50 -07:00
parent fe0b421212
commit 482a60825b
1 changed files with 20 additions and 6 deletions
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26
passes/techmap/abc9.cc
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@ -319,10 +319,10 @@ void abc9_module(RTLIL::Design *design, RTLIL::Module *current_module, std::stri
if (!cleanup) if (!cleanup)
tempdir_name[0] = tempdir_name[4] = '_'; tempdir_name[0] = tempdir_name[4] = '_';
tempdir_name = make_temp_dir(tempdir_name); tempdir_name = make_temp_dir(tempdir_name);
log_header(design, "Extracting gate netlist of module `%s' to `%s/input.aig'..\n", log_header(design, "Extracting gate netlist of module `%s' to `%s/input.xaig'..\n",
module->name.c_str(), replace_tempdir(tempdir_name, tempdir_name, show_tempdir).c_str()); module->name.c_str(), replace_tempdir(tempdir_name, tempdir_name, show_tempdir).c_str());
std::string abc_script = stringf("read %s/input.aig; &get -n; ", tempdir_name.c_str()); std::string abc_script = stringf("&read %s/input.xaig; &ps ", tempdir_name.c_str());
if (!liberty_file.empty()) { if (!liberty_file.empty()) {
abc_script += stringf("read_lib -w %s; ", liberty_file.c_str()); abc_script += stringf("read_lib -w %s; ", liberty_file.c_str());
@ -407,7 +407,7 @@ void abc9_module(RTLIL::Design *design, RTLIL::Module *current_module, std::stri
handle_loops(design); handle_loops(design);
Pass::call(design, stringf("write_xaiger -O -map %s/input.sym %s/input.aig; ", tempdir_name.c_str(), tempdir_name.c_str())); Pass::call(design, stringf("write_xaiger -O -map %s/input.sym %s/input.xaig; ", tempdir_name.c_str(), tempdir_name.c_str()));
design->selection_stack.pop_back(); design->selection_stack.pop_back();
@ -546,9 +546,10 @@ void abc9_module(RTLIL::Design *design, RTLIL::Module *current_module, std::stri
output_bits.insert({wire, i}); output_bits.insert({wire, i});
} }
else { else {
if (w->name.str() == "\\__dummy_o__") { if (w->name.in("\\__dummy_o__", "\\__const0__", "\\__const1__")) {
log("Don't call ABC as there is nothing to map.\n"); //log("Don't call ABC as there is nothing to map.\n");
goto cleanup; //goto cleanup;
continue;
} }
// Attempt another wideports_split here because there // Attempt another wideports_split here because there
@ -874,6 +875,19 @@ void abc9_module(RTLIL::Design *design, RTLIL::Module *current_module, std::stri
RTLIL::Wire *w = it.second; RTLIL::Wire *w = it.second;
if (!w->port_input && !w->port_output) if (!w->port_input && !w->port_output)
continue; continue;
if (w->name == "\\__const0__") {
log_assert(w->port_output);
module->connect(w, RTLIL::S0);
continue;
}
if (w->name == "\\__const1__") {
log_assert(w->port_output);
module->connect(w, RTLIL::S1);
continue;
}
if (w->name == "\\__dummy_o__")
continue;
RTLIL::Wire *wire = module->wire(w->name); RTLIL::Wire *wire = module->wire(w->name);
RTLIL::Wire *remap_wire = module->wire(remap_name(w->name)); RTLIL::Wire *remap_wire = module->wire(remap_name(w->name));
RTLIL::SigSpec signal; RTLIL::SigSpec signal;